public class dgc_Spaceship : DrawableGameComponent
{
Texture2D shipTexture;
Rectangle spriteRectangle;
SpriteBatch spriteBatch;
//
bool horizisSelected = false;
bool rotateSelected = false;
bool fireisSelected = false;
SpriteFont Count;
//Controls for ship
dgc_TriggerHorizontal triggerHorizantal;
Vector2 spritePosition;
Vector2 spriteOrigin;
Vector2 direction;
float rotation = 0.1f;
Random x, y;
List<Missle> missleCollection = new List<Missle>();
List<Asteriod> asteriodCollection = new List<Asteriod>();
Missle missle;
Asteriod asteriod;
public dgc_Spaceship(Game game)
: base(game)
{
// TODO: Construct any child components here
triggerHorizantal = new dgc_TriggerHorizontal(game);
triggerHorizantal.triggerHorizantal += new EventHandler(triggerHorizantal_Handler);
triggerHorizantal.triggerRotate +=new EventHandler(triggerHorizantal_triggerRotate);
triggerHorizantal.triggerFire +=new EventHandler(triggerHorizantal_triggerFire);
Game.Components.Add(triggerHorizantal);
missle = new Missle(game);
asteriod = new Asteriod(game);
for (int i = 0; i < 2; i++)
{
missleCollection.Add(new Missle(game));
}
for (int i = 0; i < 2; i++)
{
asteriodCollection.Add(new Asteriod(game));
}
}
/// <summary>
/// Allows the game component to perform any initialization it needs to before starting
/// to run. This is where it can query for any required services and load content.
/// </summary>
public override void Initialize()
{
// TODO: Add your initialization code here
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
shipTexture = Game.Content.Load<Texture2D>(@"Sprites\spaceship");
spritePosition = new Vector2(450,320);
missle.LoadContent();
Count = Game.Content.Load<SpriteFont>(@"Sprites\Count");
//
x = new Random();
y = new Random();
foreach (Asteriod display in asteriodCollection)
{
display.LoadContent();
int xVec = x.Next(0, 200), yVec = y.Next(0, 200);
display.position = new Vector2(xVec, yVec);
}
base.LoadContent();
}
/// <summary>
/// Allows the game component to update itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
public override void Update(GameTime gameTime)
{
// TODO: Add your update code here
spriteRectangle = new Rectangle((int)spritePosition.X, (int)spritePosition.Y, shipTexture.Width, shipTexture.Height);
spriteOrigin = new Vector2(spriteRectangle.Width / 2, spriteRectangle.Height / 2);
direction = new Vector2((float)Math.Cos(rotation), (float)Math.Sin(rotation));
if (horizisSelected)
{
spritePosition.X-= 0.5f;
spritePosition.Y-= 0.5f;
}
if (rotateSelected)
{
rotation += 0.1f;
// missle.rotateSprite();
spritePosition += direction * 20 * gameTime.ElapsedGameTime.Milliseconds;
}
if (fireisSelected)
{
missle.update();
}
base.Update(gameTime);
}
public override void Draw(GameTime gameTime)
{
spriteBatch.Begin();
// missle.draw(spriteBatch,rotation);
spriteBatch.Draw(shipTexture,spritePosition,null,Color.White,rotation,spriteOrigin,1f,SpriteEffects.None,0);
// spriteBatch.DrawString(Count,asteriodCollection.Count.ToString(),new Vector2(100,100),Color.Red);
foreach (Asteriod display in asteriodCollection)
{
display.Draw(spriteBatch);
}
spriteBatch.End();
base.Draw(gameTime);
}
public void triggerHorizantal_Handler(object sender, EventArgs e)
{
//Do Stuff
horizisSelected = !horizisSelected;
}
public void triggerHorizantal_triggerRotate(object sender, EventArgs e)
{
//Do Stuff
rotateSelected = !rotateSelected;
}
public void triggerHorizantal_triggerFire(object sender, EventArgs e)
{
//Do Stuff
fireisSelected = !fireisSelected;
}
}
}
私の問題：
私はこれを理解できないようです。画面に2つの機能ボタンがあります。クリックすると、船は時計回りに回転し、もう一方は船を前方に動かします。少し調べてみると、Math.Sin / Cosの式が見つかりましたが、正しく実装できていないと思います。
私がする必要があるのは、船を回転方向に動かすことです。
仕組み： ユーザーが回転ボタンを押すと、船が時計回りに回転します。ユーザーが希望する位置にあるときに、回転ボタンを押してその特定の方向に停止します。
水平ボタンを押すと、船がその方向に前進します。